Neuwerk, located in front of the mouth of the river Elbe in the Wadden Sea, forms together with the uninhabited neighboring islands of Scharhörnand Nigehern, the northernmost and westernmost district of Hamburg.
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Chain of islands: German bay
Land area: 3 km²
distance to the mainland: 7 km
Highest elevation: 7 m
Tallest lighthouse: Neue Werk 39 m